TY - JOUR
T1 - Nafion-based solid-state gas sensors
T2 - Pt/Nation electrodes prepared by an impregnation-reduction method in sensing oxygen
AU - Hwang, Bing Joe
AU - Liu, Yu Chuan
AU - Hsu, Wen Cheng
PY - 1998
Y1 - 1998
N2 - The influences of the reductant concentration of NaBH4 and the quantity of Pt loading on the active surface area and the sensitivity of the Pt/Nafion electrodes prepared by an impregnation-reduction method in detecting oxygen were investigated in this study. The Pt/Nafion electrodes with a Pt loading of 4.99 mg/cm2, obtained at 0.0107 M Pt(NH3)4Cl2 and 0.06 M NaBH4, show maximum sensitivities of 0.0528 μA/ppm and 0.0538 μA/ppm obtained in O2 concentration regions of 0-5000 and 5000-50 000 ppm, respectively. A sensing model was also proposed to illustrate the sensing phenomenon.
AB - The influences of the reductant concentration of NaBH4 and the quantity of Pt loading on the active surface area and the sensitivity of the Pt/Nafion electrodes prepared by an impregnation-reduction method in detecting oxygen were investigated in this study. The Pt/Nafion electrodes with a Pt loading of 4.99 mg/cm2, obtained at 0.0107 M Pt(NH3)4Cl2 and 0.06 M NaBH4, show maximum sensitivities of 0.0528 μA/ppm and 0.0538 μA/ppm obtained in O2 concentration regions of 0-5000 and 5000-50 000 ppm, respectively. A sensing model was also proposed to illustrate the sensing phenomenon.
KW - Impregnation-reduction method Pt/Nafion
KW - Sensitivity
UR - http://www.scopus.com/inward/record.url?scp=0032329349&partnerID=8YFLogxK
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U2 - 10.1007/s100080050114
DO - 10.1007/s100080050114
M3 - Article
AN - SCOPUS:0032329349
SN - 1432-8488
VL - 2
SP - 378
EP - 385
JO - Journal of Solid State Electrochemistry
JF - Journal of Solid State Electrochemistry
IS - 6
ER -